<div dir="ltr">I don't know. It is calculating and bookkeeping a lot of information. I have a similarly sized data set that initially took a few hours to backup, but last night the differential finished like so:<div><br></div><div>Last full backup date: Wed Feb 11 03:00:02 2015<br></div><div><div>--------------[ Backup Statistics ]--------------</div><div>StartTime 1424592003.05 (Sun Feb 22 03:00:03 2015)</div><div>EndTime 1424592518.80 (Sun Feb 22 03:08:38 2015)</div><div>ElapsedTime 515.75 (8 minutes 35.75 seconds)</div><div>SourceFiles 460585</div><div>SourceFileSize 55388454783 (51.6 GB)</div><div>NewFiles 648</div><div>NewFileSize 192290501 (183 MB)</div><div>DeletedFiles 1418</div><div>ChangedFiles 263</div><div>ChangedFileSize 409429060 (390 MB)</div><div>ChangedDeltaSize 0 (0 bytes)</div><div>DeltaEntries 2329</div><div>RawDeltaSize 192139628 (183 MB)</div><div>TotalDestinationSizeChange 33816251 (32.2 MB)</div><div>Errors 0</div><div>-------------------------------------------------</div></div><div class="gmail_extra"><br></div><div class="gmail_extra"><br></div><div class="gmail_extra"><div class="gmail_quote">On Wed, Apr 22, 2015 at 3:08 PM, Edward Holcroft <span dir="ltr"><<a href="mailto:eholcroft@mkainc.com" target="_blank">eholcroft@mkainc.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-size:small"><div>This is what I got local drive to local drive test (no USB involved). This seems impossibly slow.</div><div><br></div><div>StartTime 1429713308.46 (Wed Apr 22 10:35:08 2015)</div><div>EndTime 1429728281.54 (Wed Apr 22 14:44:41 2015)</div><div>ElapsedTime 14973.08 (4 hours 9 minutes 33.08 seconds)</div><div>SourceFiles 52736</div><div>SourceFileSize 98274663358 (91.5 GB)</div><div>NewFiles 52736</div><div>NewFileSize 98274663358 (91.5 GB)</div><div>DeletedFiles 0</div><div>ChangedFiles 0</div><div>ChangedFileSize 0 (0 bytes)</div><div>ChangedDeltaSize 0 (0 bytes)</div><div>DeltaEntries 52736</div><div>RawDeltaSize 98251115454 (91.5 GB)</div><div>TotalDestinationSizeChange 92760516730 (86.4 GB)</div><div>Errors 0</div><div><br></div></div></div><div class="gmail_extra"><br></div></blockquote></div><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>James Sumners<br><a href="http://james.sumners.info/" target="_blank">http://james.sumners.info/</a> (technical profile)</div><div><a href="http://jrfom.com/" target="_blank">http://jrfom.com/</a> (personal site)</div><div><a href="http://haplo.bandcamp.com/" target="_blank">http://haplo.bandcamp.com/</a> (band page)</div></div></div></div></div>
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